Casement-window attachment



Aug. 21, 1928. 1,681,798

A. H.- CARRIER CASEMENT WINDOW ATTACHMENT Filed July 20, 1927 2Sheets-Sheet 2 attoznu,

Patented Aug. 21, 1928.

UNITED STATES ALBERT H. CARRIER, F ASHEVILLE, NORTH CAROLINA.

CA:SE1!IENT-\VIENDOW ATTACHMENT.

Application filed July 20,

This invention relates to a casement window attachment, and theroveinent proposes a corn, iratively. simplified means for adjustment ofthe sash either into partially or fully opened position to any degreedesired for ventilation, or in fun; closed position, or topositionthesash so that the glass thereof may be render d readily accessible atopposite sides forcleaning or other purposes,

" and also provide asiinpleform of lock solely and operatively exposedwithin a room or 'tment'with which the casement winstructurallyassociated to reliably hold meat sash closed by means which can 3 not hereached fronrthe exterior of the sash when the'latter is closed.

The present structure is an improvement of the easement Window operatingmeans disclosed by my prior patents. and espe- 1 0. 1,309,925, April 15,1919, and No. 1,553,137. September 8, 1925. where n is embodiedparticular forms of toothed quad-- rants and worms for swinging theeasement sash in opposite directions.

In the present construction, among other advantageous features of theimprovement, are theformation of the parts mainly from sheet metal; theelimination of particular preparation of the woodwork of the frame toapply the working mechanism, and in a metal f the shaping of portions ofsaid il'itiflfl latter frame to replace the separate worm box'or casingstructure, and provision for cutting the rraine solely on the outsideand the formation of a single opening through the lower portion of theframe for operative placement of the working parts to the frame and sashand thereby render it possible to readily apply the improved structureof frames now in use.

The invention also consists in details of construction and arrangementof the several parts which will be more fully hereinafter described andclaimed.

In the drawings F i ure. 1 is an inner side elevation of a casementwindow sash and frame, broken through in parts, and showing the improvedsash operating mechanism applied thereto in elevation.

Figure 2 is a. longitudinal vertical section of the improved sashoperating mechanism, a portion of the sash being shown in dotted linesand the lower part of the frame illustrated'in'section.

Figure 8 is a transverse vertical section on 1927. Serial No. 207,289.

the line 3-3 of Figure 4, showing also partionsof the sash and frame.

Figure 4 is a bottom plan view, partially in section, showing a portionof the sash and parts of the improved mechanism in full and dottedlines.

Figure 5 is a view similar to Figure 4 with an addition of part of thefraine in section, and showing the members of the improved mechanism ina different position.

Figure 6 is a transverse vertical section taken in the plane of the line6-6 of Figure 1, with an addition of part of the frame which is shown insection.

The numeral 5 designates a casementframe of a simple construction andmay be either wood or metal, but as shown particularly in the drawingsis constructed of wood and comprises side and top memhers 6 and T ofusual form rising from a stool 8 with which is associated a sill 9 andan apron 10. As clearly shown by Figure 6, the casement sash 11 islocated and operates close to the outer edge of the stool 8 over thesill 9, the foregoing structure being that commonly adopted in casementwindow structures or installations, and as before indicated, may beeither of wood or metal. In the present instance, as in all structuresof this class, the sash 11 is mounted to swing within the frame inoutward and inward directions to different dcgrees in open condition forventilation and also to conveniently expose opposite sides of the glass12 for convenience in cleaning the same. The bottom of the sash isformed with a longitudinally disposed mortise or seat 13 which extendsfully inward through the inner side of the lower rail of the sash froman outer depending guard wall 14 so as to exteriorly enclose a part ofthe 1nochanism, as will be hereinafter explained, and the sill 9, whenformed of wood. has a seat or recess 15 of suitable depth in which ismounted a casing 16. If the casement Window frame is constructed ofmetal the said seat or recess 15 and the casing 16 will be replaced bysuitable shaping the metal forming the said casing to provide the seat,which is an obvious structure and does not require other than ordinarymechanical skill to effect the formation of said seat. In eitherstructure, an opening 17 of suitable dimensions extends from the innerside of the casing 16 and continues through the apron 10, as at 18. Itwill be seen that lflll the preparation of the frame and sash for thereception of the working parts or im proved attachment are at the outerportion of the frame and at the bottom of the sash, the seat or recess13 continuing into an inner upwardly projecting portion 19 of the sill9, so as to give ample room for the operation of the movable parts ofthe attachment. Secured to the bottom of the sash or the top wall of theseat or recess 13 formed in the lower rail 11 of the sash, is a metalplate 20 which has a depending pivot- 21 located at the outer end of theplate. The opposite extremity of the plate 20 has the outer end of abrace-arm 22 connected thereto by a pivot 22, the opposite terminal ofsaid brace-arm being pivoted, as at 22", to one end of a plate 23secured to the sill 9, and having an inner angular upstanding flange 24,to form a guideway opening towards the stool 8. The casing 16 is open atthe top and coincides with an opening 25 in the plates 23, so that theworking mechanism consisting of a worm 26 and a pinion 27 may be exposedtherethrough. The worm 26 is of greater diameter than the pinion 27, andis comparatively narrow, and has a limited number of worm coi1-volut-ions surrounding the same, both the worm and the pinion beingkeyed on the outer end of a shaft 23 which is angular in cross sectionand extends through an opening 16 at the inner side of the casing 16 andthrough the opening 17 of the sill 9 and into the opening 18 of theapron 10. The worm 26 and the pinion 27 are closely arranged so as todispose these rotating parts in compact form, ample space being providedwithin the casing 16 for the free operationof the worm 26 which isprevented from becoming displaced by having its outer side closelyfitted wi h relation to the outer wall of the said 0 -ng, as shown byFigure 6. The opening 16 t t inner side of the casing 16 in line wituthe opening 17 through the stool is just large enough to permit theshaft 28 to pass through and operate therein, the angular form of theshaft 28 providing for a reliable operation of the said worm and pinionwhich are secured by any well known form of specific fastening devicesto key them to the shaft. The said shaft at its inner extremity isfitted in an outwardly projecting hub 29 of a crank handle 30 located ata suitable distance from the inner side of the apron 10 and readilyaccessible for operation. The hub 29 is secured to an escutcheon 31 byinsertion in the tube 31 of the escutcheon which is clamped or otherwisefastened to the apron, the said tube 31 and escutcheon being slotted, asat 32, as clearly shown by Figure 5, to permit the positive applicationand securement of the hub 29 therein, the tube 31 and hub 29 beingresaid hub 29.

spectively provided with an interlocking rib 31 and an annular groove 29to receive said latter rib, and whereby the escutcheon is held withinthe apron 10 and attached to it will be seen that this structure. whichoccupies a minimized space, provides means for securing the crank handleand its hub within the apron, and positively associated with the innerend of the shaft.-

llhe brace- .1111122 is formed with. an intermediate segment 33 whichprojects inwardly,

and at an intermediate point therein are a series of worm engaging teeth3 L formed by slotting the said intermediate segment 13 to liberate theout metal which is struck downwardly, the teeth 34 being in substantialarcuate alineinent in transverse relation relatively to segment 33 andpositioned for engagement by the convolutions of the worm 26. Theseteeth 3% move closely over the upper opening 25 of the casing 16, and atintervals they are disengaged from the convolutions of the worm 26.Extending transversely from the pivot 21 of the sash 11 is an arm 35which extends over in close relation to the horizontal member of theangular flange 2% of the plate 23 and continues into a sheet metalbox-like rack 36, clearly shown by Figure 3, said rack beingsubstantialy rectangular in form and free to longitudinally slidebetween the vertical angular portion of the flange 24 of the blade 23and the upper innerside wall 37 of the casing 16. The rack teeth areformed by regularly spaced slots 38 in the lower horizontal member ofthe said rack, and in position for engagement by theteeth of the pinion27. From the inner end of the blade 23 an angular arm 39 projectsinwardly and bears on the upper horizontal member 40 of the rack, andsurrounding and depending with the pivot 22 is circular boss 41 whichbears firmly against the inner vertical portion of the flange 39 at theinner end of the plate 23 and holds the rack 36 against irregularmovement or distortion, and likewise around "he pivot 21 is a dependingboss 42 which bears against the vertical portion of the inwardlyprojecting flange 2a of the plate 23 beneaththe arm 35, and by thisfurther means the movement of the sash .11 is steadied, said boss 42sliding regularly and longitudinally in contact with the inner verticalportion of the said flange 34. Through the arm 35 the rack is me *edproportionately inwardly to be in proper position for engagement of theteeth 38 thereof with the teeth of the pinion 27, but this engagementwith the rack is not effected until the convolutions or teeth of theworm 26 are disengaged from the teeth 342 of the brace-arm 22. Thebrace-arm 22 e1 erates to start the outer movement the sash 11whichswings on the pivot- 21, and the angle of the brace- IOU llO

arm ismodified regularly in accordance with the openingof' the-sashll, apull in an in.- ward direction. beingexerted on the sash: 11 andflt'.tlIB-SE1I11E time the rack. is longitudinally reciprocated and justas thecon.- volutedteethof the worm. 26w disengage flom the teeth :34 ofthesegment 33. of the brace-arm 22, the inner teeth 38 of the rack 36will be in position for" engagement by the pinion 27 and: the. latterand rack continue tomove or swing'the sash 1 1' outward.- ly, thebrace-arms 22. then operating" to stabilize the movement. of the sash;The rackandpinion organization; continue to move the sash 11 until: itoccupies the position. as shown by- Figure 5, or when the rack willhave.reached thev limit. of itsinward reciprocation, and av reverse'movementof the shaft 28. will cause the rack 36. to move inran out-warddirection-andv gradually swing the. sash: 1'1 inwardly and at the sametime drawthe brace-arm at an angle until the convoluted teeth of'th'eworm 26 again engage? the teeth 340i". the" segment: 33 of the saidbrace-arma and close the sash fully againstiand in parallel relation. tothe: stool 8. as shown hyFigure- 6:. The operationuot' the severalparts'are so timed: that. the dis+ engagement of the wormrQt} from theteeth 34 will ensue just at. the" period that. the teeth 38. of thereciprocating rack 36 arein position": for engagement with the pinion27, and in the reverse movement: the rack istnot disengaged by thepinion untilthe worm just takes hold or engagesthe-teeth 34-ofthebracesarmi 22.

At the upper side or:top of t'he sash 11 a part of the mechanismheretofore described a pivotal means is applied and. comprises aplate-.43;. which is securedito the top of the sash. an'dzin turn.pivoted to atplate 4.4 cor+ responding respectively to. theplatesQO and23 heretofore described and in; reverse positions and similarly: pivoted.ZIIIClThBVlIIgI a brace-arm corresponding to the. 211m 22,. the upperportion ot-the frame heing slotted or mortisech. as; at. 4.6,. toaccommodate. the mounting of these parts, and. bymeans. of which :th'e-apivotal connection at. theupper part of the sash corresponds to thepivotal organization. atthe lower part of the sash without the rack 36and toothed segment 33 of the arm 22 heretofore described. Obviously theobjectin view is to correspond ingly pivot or hinge the upper or topportion of the sash so that it will move in consonance with the lowermovement or pivotal or hinged connection of the sash. It is ob viousalso that by simply reversing the parts of the operating mechanismheretofore described in connection with the lower part of the sash mightbe applied to the upper part of the sash, the only change necessarywould be a slight modification of the Worm which would be within therange of mechanical skill and not involving'features'of invention.

As 1 heretofore described the improved casement. window attachment. isvery much simplified as. compared to thestruetnres of my patentsheretofore and. other previousanalogoussdeviceg and embodies theslidingor reciprocatingg'rack as-the mostessentialfeature, which by its:actuation .COII- tinues the outward. andilinwardmovement 'of the sashwhen the: worm. is disengaged at intervals.- fromthe teeth 34-. of the;segment 33 of the arm 22,.thearm 22"at thev intervals duringwhich thewormris disengaged: from thesaidteeth 3; serving to steadyft'he movementof the sash, but by engagement: of the worm saidjteeth 34stintervalssstarting the sashto open and fully'close. heretofore alsonoted" the cntting'of the" woodwork of the lower'partofi therframe,ortheshap ing. of: a' metal. frame vto receive. the; workingmechanismais wholly onzthewtside, but is shielded fromtamperingbythex-sash disposedz thereover atoll times; Thesashll'. isregularly operated: without restrictioniin its opening. and:closing;movements,-. and the improved attachment. makeriallyeconorni'zes in the costiof'construction and application of theattachments ordinarily used in operating a casement window sash;

A further material; advantageixrthe present construction is thatsheet-metal, preferably of non-corrosive type, will-be. used inlion-airing; the several parts,. andtherebyreduce-thescost-of castingthe rack-.36 and the arm=29,.the remainingparts. associated.therewithtbeingf inthe; form of. plates of similar sheetmetnl and: allconnected-111p with snfli cient strength and durability to effectivelyoperate in the particular service application thereof;

Wihat is claimed as new is.:.-

1. in-attachment ofthe class specified, the combination with a frame anda-caeemerit? sash, of. means for opening; and closing: the sash andconsisting of pi-vot devifcesconnected; to the-sash and-a portion of theframe and: includinga hrace amr. pivoted. at: its: ends to; the: frameand sash, a sliding rack operativelyassociated with the sash and: frame,and. an operating shaft meansto operate the brace arm and a pinion tomesh with the teeth of the rack and swing the sash inwardly andoutwardly.

2. An attachment of the class specified, comprising a frame and acasement sash mounted to swing therein, pivotal means connected to thesash and frame and including a brace-arm having depending teeth, alongitudinal reciprocating rack bar operatively associated with the sashand frame, and a shaft carrying a worm to engage said teeth of thebrace-arm and a pinion to engage the teeth of the rack for opening andclosing the sash.

3. An attachment of the class specified,

consisting of a frame with a casement sash mounted therein to swinginwardly and outwardly, means for pivotally disposing the sash and theframe and including a brace-arm connected to the sash and also to theframe and having teeth depending therefrom, a longitudinallyreciprocating rack operatively associated with the sash and frame, and ashaft extending throu h a portion of the frame and provided with a wormto engage the teeth of the brace-arm and a pinion to engage the teeth ofthe rack, the parts being so arranged that as the worm disengages andengages the teeth of the bracearm the pinion will engage and disengagethe teeth of the rack, the brace-arm being arranged to partially openand close the sash and the rackcontinuing the opening and closingmovement of the sash.

4t. An attachment of the class specified, consisting in combination witha casement sash and frame, of means for pivoting the sash within theframe to swing into various po sitions in open and closed position, themeans for pivoting the sash in the frame including a device havingdepending teeth. a longitudinally reciprocating rack operativelyassociated with the sash and frame, and a shaft extending through aportion ofthe frame to the inner side thereof and carrying a closelyarranged worm and piion'to respectively engage the teeth of said deviceand theteeth of the rack, the worm and the pinion conjointly operatingat alternate intervals to engage the teeth of a portionof the saiddevice ofthe pivotal means and the teeth of the rack to continue theoperation of opening or closing the sash when the teeth of said pivotdevice become disengaged from and engage the teeth of the device andengage and disengage the teeth of the rack relatively to the pinion. h

5; An attachment of the class specified, consisting in combination witha casement frame and sash, of means for pivoting the sash within theframe and including a brace-arm attached to the sash and frame,a'longitudinally reciprocating rack operatively associated with the sashand frame, a worm for alternately engaging and disengaging a portion ofthe said brace-arm, a pinion for engaging and disengaging the teeth ofthe rack to relatively continue the operation of. opening and closingthe by independent actuation, and operating means common to both theworm and pinsash, ant.. single shaft carrying dual means for actuatingthearm and rack.-

7. In an attachment of the class specified, the combination with acasement frame and sash, of means for pivotally mounting the sash withinthe frame and including a transversely toothed arm pivotally connectedto the sash and frame, a worm for engaging the teeth of said arm for aportion of its movement to actuate the same and then become disengagedfrom said arm, a longitudinally reciprocating rack associated with theframe and sash and a pinionto engage the said rack when the arm isdisengaged with relation'to the means for engaging the same, and asingle shaft on which said worm and pinion are mounted.

8. In an attachment of the class specified, the combination with acasement frame and sash, of, sheet metal means for pivotally connectingthe sash to the frame and including a brace-arm with teeth out andstruck downwardly from an intermediate portion thereof, a longitudinallyreciprocating rack consisting of doubled sheet metal with teeth formedby slots in the lower portion thereof, an operating shaft carrying aworm to engage the teeth of the arm, and a pinion to engage the teeth ofthe rack for operating the said arm and teeth and the rack at timedintervals.

In testimony whereof I have hereunto set my hand' ALBERT H. CARRIER.

